def test_get_entry_stability(self):
stab = self.analyzer.get_entry_stability(self.pd.all_entries[0], pH=0, V=1)
self.assertAlmostEqual(stab, 3.88159999)
# binary
pd_binary = PourbaixDiagram(self.multi_data['binary'],
comp_dict = {"Ag": 0.5, "Te": 0.5})
analyzer_binary = PourbaixAnalyzer(pd_binary)
ghull = analyzer_binary.get_entry_stability(self.multi_data['binary'][16],
0, -5)
class TestPourbaixAnalyzer(PymatgenTest):
def setUp(self):
module_dir = os.path.dirname(os.path.abspath(__file__))
(elements, entries) = PourbaixEntryIO.from_csv(
os.path.join(module_dir, "test_entries.csv"))
self.num_simplices = {
"Zn(s)": 7,
"ZnO2(s)": 7,
"Zn[2+]": 4,
"ZnO2[2-]": 4,
"ZnHO2[-]": 4
}
self.e_above_hull_test = {"ZnHO[+]": 0.0693, "ZnO(aq)": 0.0624}
self.decomp_test = {
"ZnHO[+]": {
"ZnO(s)": 0.5,
"Zn[2+]": 0.5
},
"ZnO(aq)": {
"ZnO(s)": 1.0
}
}
self.pd = PourbaixDiagram(entries)
self.analyzer = PourbaixAnalyzer(self.pd)
self.multi_data = loadfn(os.path.join(test_dir, 'multicomp_pbx.json'))
warnings.simplefilter("ignore")
def tearDown(self):
warnings.resetwarnings()
def test_chempot_range_map(self):
range_map = self.analyzer.get_chempot_range_map()
range_map_dict = {}
for PourEntry in range_map.keys():
range_map_dict[PourEntry.name] = range_map[PourEntry]
for entry in self.num_simplices.keys():
self.assertEqual(len(range_map_dict[entry]),
self.num_simplices[entry])
ZnO2_entry = [e for e in self.pd.all_entries if e.name == "ZnO2(s)"][0]
test_vertices = self.analyzer.pourbaix_domain_vertices[ZnO2_entry]
self.assertArrayAlmostEqual(test_vertices[0], [16, 4])
def test_get_decomp(self):
for entry in [
entry for entry in self.pd.all_entries
if entry not in self.pd.stable_entries
]:
decomp_entries = self.analyzer.get_decomposition(entry)
for entr in decomp_entries:
self.assertEqual(decomp_entries[entr],
self.decomp_test[entry.name][entr.name])
e_above_hull = self.analyzer.get_e_above_hull(entry)
self.assertAlmostEqual(e_above_hull,
self.e_above_hull_test[entry.name], 3)
def test_binary(self):
# Test get_all_decomp_and_e_above_hull
pd_binary = PourbaixDiagram(self.multi_data['binary'],
comp_dict={
"Ag": 0.5,
"Te": 0.5
})
analyzer_binary = PourbaixAnalyzer(pd_binary)
te_entry = [
e for e in pd_binary._unprocessed_entries
if e.composition.formula == "Te3"
][0]
de, hull_e, entries = analyzer_binary.get_all_decomp_and_e_above_hull(
te_entry)
self.assertEqual(len(de), 10)
self.assertEqual(len(hull_e), 10)
# Find a specific multientry to test
tuples = zip(de, hull_e, entries)
test_tuple = [t for t in tuples if t[2].name == 'Te(s) + Ag[2+]'][0]
self.assertAlmostEqual(test_tuple[1], 5.1396968548627315)
def test_ternary(self):
# Ternary
te_entry = self.multi_data['ternary'][20]
pd_ternary = PourbaixDiagram(self.multi_data['ternary'],
comp_dict={
"Ag": 0.33333,
"Te": 0.33333,
"N": 0.33333
})
analyzer_ternary = PourbaixAnalyzer(pd_ternary)
de, hull_e, entries = analyzer_ternary.get_all_decomp_and_e_above_hull(
te_entry)
self.assertEqual(len(de), 116)
self.assertEqual(len(hull_e), 116)
tuples = zip(de, hull_e, entries)
test_tuple = [
t for t in tuples if t[2].name == 'N2(s) + TeO4[2-] + Ag[2+]'
][0]
self.assertAlmostEqual(test_tuple[1], 50.337069095866745)
def test_get_entry_stability(self):
stab = self.analyzer.get_entry_stability(self.pd.all_entries[0],
pH=0,
V=1)
self.assertAlmostEqual(stab, 3.88159999)
# binary
pd_binary = PourbaixDiagram(self.multi_data['binary'],
comp_dict={
"Ag": 0.5,
"Te": 0.5
})
analyzer_binary = PourbaixAnalyzer(pd_binary)
ghull = analyzer_binary.get_entry_stability(
self.multi_data['binary'][16], 0, -5)
class TestPourbaixAnalyzer(unittest.TestCase):
def setUp(self):
module_dir = os.path.dirname(os.path.abspath(__file__))
(elements, entries) = PourbaixEntryIO.from_csv(os.path.join(module_dir,
"test_entries.csv"))
self.num_simplices = {"Zn(s)": 7, "ZnO2(s)": 7, "Zn[2+]": 4, "ZnO2[2-]": 4, "ZnHO2[-]": 4}
self.e_above_hull_test = {"ZnHO[+]": 0.0693, "ZnO(aq)": 0.0624}
self.decomp_test = {"ZnHO[+]": {"ZnO(s)": 0.5, "Zn[2+]": 0.5}, "ZnO(aq)": {"ZnO(s)": 1.0}}
self.pd = PourbaixDiagram(entries)
self.analyzer = PourbaixAnalyzer(self.pd)
self.multi_data = loadfn(os.path.join(test_dir, 'multicomp_pbx.json'))
def test_get_facet_chempots(self):
range_map = self.analyzer.get_chempot_range_map()
range_map_dict = {}
for PourEntry in range_map.keys():
range_map_dict[PourEntry.name] = range_map[PourEntry]
for entry in self.num_simplices.keys():
self.assertEqual(len(range_map_dict[entry]), self.num_simplices[entry])
def test_get_decomp(self):
for entry in [entry for entry in self.pd.all_entries if entry not in self.pd.stable_entries]:
decomp_entries = self.analyzer.get_decomposition(entry)
for entr in decomp_entries:
self.assertEqual(decomp_entries[entr], self.decomp_test[entry.name][entr.name])
e_above_hull = self.analyzer.get_e_above_hull(entry)
self.assertAlmostEqual(e_above_hull, self.e_above_hull_test[entry.name], 3)
def test_binary(self):
# Test get_all_decomp_and_e_above_hull
pd_binary = PourbaixDiagram(self.multi_data['binary'],
comp_dict = {"Ag": 0.5, "Te": 0.5})
analyzer_binary = PourbaixAnalyzer(pd_binary)
te_entry = pd_binary._unprocessed_entries[4]
de, hull_e, entries = analyzer_binary.get_all_decomp_and_e_above_hull(te_entry)
self.assertEqual(len(de), 10)
self.assertEqual(len(hull_e), 10)
self.assertAlmostEqual(hull_e[0], 5.4419792326439893)
def test_ternary(self):
# Ternary
te_entry = self.multi_data['ternary'][20]
pd_ternary = PourbaixDiagram(self.multi_data['ternary'],
comp_dict = {"Ag": 0.33333,
"Te": 0.33333,
"N": 0.33333})
analyzer_ternary = PourbaixAnalyzer(pd_ternary)
de, hull_e, entries = analyzer_ternary.get_all_decomp_and_e_above_hull(te_entry)
self.assertEqual(len(de), 116)
self.assertEqual(len(hull_e), 116)
self.assertAlmostEqual(hull_e[0], 29.2520325229)
def test_v_fe(self):
v_fe_entries = self.multi_data['v_fe']
pd = PourbaixDiagram(v_fe_entries, comp_dict = {"Fe": 0.5, "V": 0.5})
analyzer_vfe = PourbaixAnalyzer(pd)
entries = sorted(pd._all_entries, key=lambda x: x.energy)
self.assertAlmostEqual(entries[1].weights[1], 0.6666666666)
self.assertAlmostEqual(entries[1].energy, -110.77582628499995)
self.assertAlmostEqual(entries[100].energy, -20.685496454465955)
def test_get_entry_stability(self):
stab = self.analyzer.get_entry_stability(self.pd.all_entries[0], pH=0, V=1)
self.assertAlmostEqual(stab, 3.88159999)
